Sheet-metal roofing.



E. R. PROBBRT.

SHEET METAL ROOFING.

APPLICATION FILED AUG.25,1913.

1l23,921 Patented c1911.5, 1915.

F/Gi.

Wiz/226mm.' ve/z fw".-

EDWIN R. PROBERT, OF COVINGTON, KENTUCKY.

SHEET-METAL ROOFING.

Application led August 25, 1913.

To all 'whom it may concern:

Be it known that I, EDWIN R. PROBERT, a citizen of the United States, and a resident of Covington, in the county of yKenton and State of Kentucky, have invented a certain new and useful Improvement in Sheet- Metal Roofing, of which the following is a specification.

This invention relates to oints for sheetmetal roofing in which overlapped, oppositely-sloping crimps are provided and the fastening-nails are driven through-the apex of each lapped joint into the sheathing beneath.

rThe object of the invention herein is to provide within its scope both an ornamental and a plain joint of the oppositely-inclined type, havingits capping-member provided with a truncated or flattened apex for the ready insertion of the-fastening-nails, and its capped-member with a depressed or concaved apex vertically alined withvsaid truncated or flattened apex for the ready setting and guiding of the nail points, an inclined inner limb extending along one edge of said concaved apex and an L-shape limb ex.

sired in such a roof; and Fig. 2 is a similar.

view but showing a plain form of my invention herein and with slightly less ad-- vantages than those of the somewhat ornamental form seen in Fig. 1. l 1 indicates that part or edge of the body portion of the sheet containing the upper or capping member of the joint and 2 the opposite edge of the body portion of the contiguous sheet containing the under or capped crimp member of the joint. Y

In Fig. 1, I have shown what is usually designated as an ornamental joint, and, in

Fig. 2, a plain or ordinary flat-topped butotherwise inverted-V shape joint is presented toview, both views, however, carrying in their respective structures the really essential features of my invention and adapted Specification of Letters Patent.

Serial No. 786,418'.

to meet the wants and needs of the trade and user. Y

ln said `Fig. l the upper or capping crimp-member is composed of a pair of corresponding, inclined `sides or limbs 3 and 4, respectively, that extend from and above the plane of the sheet l and are integrally-connected by means of a horizontal or truncated apex-member 5. rlhe outer limb l of the capping-crimp is somewhat shorter or shallower than the inner limb 3 so that its lower edge shall lie above the plane of the contiguous sheet 2 and thereby reduce seepage into the joint from capillary attraction or otherwise as much as possible without weakening the joint or unduly limiting its closing capacity. rllhe limbs 3 and 4 of the capping-crimp are correspondingly bent or shaped so as to provide for the intermediate, slightly inclined portions 6 and 7, re-I spectively, therein and intended to impart an. ornamental appearance or finish to the joint. The horizontal apex-member 5 of the capping crimp-member provides a suitable surface for the ready placing and driving of the fasteningnails, one of the latter being shown at 8 in both views. f

ln saidF ig. l the under or capped crimpmember of the joint is composed of an inner inclined limb 9 that projects from the edge ofthe contiguous sheet 2, a perpendicular outer limb or brace l0, a horizontal connecting apex-member 1l forthe upper edges of limbs 9 and 10, a horizontal foot or base l2 projecting outwardly` from the lower edge of the perpendicular limb 10, and an upwardly-extending flange 13 along the outer edge of the foot or base l2.

AThe inner inclined limb 9 is bent so as to form a shoulder la that is slightly inclined to coincide with the degree of inclination of Patented Jan.. 5, MM5..

the part 7 made in the outer limb 4 of the capping crimp-member. The shoulder lat lies in a plane somewhat below that of the said part 7 so as to provide an air space l5 for vventing and drying purposes and, also, for presenting a positive barrier to the upward seepage of water in to the joint by w capillary attraction, wind, or otherwise.

The connecting apexmember l1 of the under or capped crimp-member is preferably de ressed or made concave, as plainly seen inl oth views. This concave form enables the ready and accurate locating or seating and direct driving of the nail point therethrough into the sheathing beneath,

and it also provides an air space or vent passage, as well as an auxiliary seepage barrier, below the horizontal apex-member 5 of the upper or capping crimp-member. v

The perpendicular outer limb 10 of the under crimp-member forms a stiff and rigid support or brace whereby the nailing of the joint in place on the sheathing is greatly facilitatedand danger of lateral spreading of the inclined limbs of said joint reduced to a minimum. It is preferable to have the limb 10 taper slightly from the exact perpendicular, as shown in both views, so that the sheets can be more readily nested for storage and shipping and, also, morereadily parted when it is desired to use them. In nesting the under or lapped sheets containing the plain form seen in Fig. 2, however, the upwardly-turned flange 13 is turned outwardly, as in the form shown in Fig. 1 and then restored to inwardly-turned position, lif desired, when put/into use. The lateral foot or base 12 imparts a solid founglation for said perpendicular member 10 and furnishes a suitable bottom for an air or vent passage and a water shed or gutter 16 to direct any possible water over the top of the upright brace 10 inthe joint to the eaves below, prevents any moistur'e collecting within that part of the joint to cause corrosion.

The upwardly-turned flange 13 along the outer edge of the foot or base one side of the gutter or air passage'l and its outer edge preferably contacts with the inner face of the limb 3` of the capping crimp-member so as to positively strip-and direct anyleakage or flow of water into the bottom of the gutter to readily flow along it to the eaves below. The flange 13 further aids in supporting the upper crimp-meni- `ber 3. j v

' In the ornamental form observedin Fig.

1 it will be seen that there is but two flat `contacting faces at a and b .between the lapother points of contact .being simply minute and not affecting thelijtfiint in the least.

"In-F ig. 2, I show what is known as a plain joint of the inverted-V type having correspondingly-sloped sides but with a truncated orflat connecting apex. The base portion 1 in this .view has a capping crimpmember composed of an inclined plain inner limb 3 andan inclined plain outer limb 4,

' lar limb or brace'lO with its last or final escape off and thereby 12 completes v lthan the limb 3vfor the purpose referred to in connection with the description of the same parts in Fig. 1, and the said fiat apexniember 5 being also provided the same as in Fig. 1. The base portion 2, however, in the Fig. 2 structure has a slightly differont under crimp-member to that shown in Fig. 1, the inclined `inner limb 9 being a plain one and coinciding contacting outer limb 4 crimp-member.

The depressed or concave apex-member 11 of Fig. 2 and the upright or perpendicuhorizontal foot or base 12 and upwardly-turned (flange 13 are all the same as in Fig. 1 excepting that the said flange 13 .is flexed nearer to said upright brace 10 and somewhat lessens the area only of the air passage and gutter 16 but without departing from the broad features of the invention herein, as disclosed in Fig. 1, in the least.

The air-space provided above the concave apex-member 11 in Fig. 2 is the first barrier against the onward seepage of water by capillary attraction into the joint, the airpassage 16 also Jforming a. 'gutter to catch any water that might possibly escape or pass over thetop of the upright brace or limb 10 from the chamber and gutter provided by the inner concave apex-member 11.

I claim A sheet-metal roo-fing each of whose sheets or plates has along one longitudinal edge with the plain of the capping thereof a capping crimp-formation having v oppositely-sloping by an interveninglflat' apex-member and along the other long'tudin'al edge an underlying orlapped crimp-formation that has in turn or succession an upwardly-extending inclined limb, then an integral depressed or concaved top or apex portion to form an internal gutter, air space and nailhold, then an adjacent apex-supporting perpendicular limb, then -an outwardly-extending horizontal foot or base, and then an upwardly-disposed end flange or brace adapted to engage th adjacent inclined member of the capping-crimp.

j EDWIN R. PROBERT. Witnesses:

JOHN ELIAS JONES, LEWIS W. IRWIN.

sides that are connected 

